9/28 Write a program to swap the values of two variables

Question

Write a program to swap the values of two variables. The program will ask the user to input variables x and y with numerical values. You must write code that exchanges their values: the value of x after your code runs must equal the value that y had before your code ran, and the value of y after your code runs must equal the value that x had before your code ran.

寫一個交換兩個變數的程式

Example input:

3
5

Example output:

5
3

Remember: Your output may be 100% correct, but your code matters!

Comments

u

Answer 1

Hidden content!
#include<stdio.h>

int main()
{
**  **  **   ** *   ***    *  *  a,b,swap;
**   * ** * ** **  *   *  ** *  * * **  * ***  ** *   * *  *     
* * * * ***   *****  * * ****** 
       ***  *  * *** * ***
* ***  *** *** **** **** * ** * *
    ** ** ** **   * *  ** *    **** *  **   **     * * **
    **  * ***  ****    **  *  0;
}

Comments

Case 0: Correct output
Case 1: Correct output
Case 2: Correct output

Answer 2

Hidden content!
#include <stdio.h>
int main()
{
****** * *     *   ** * * **** first_number;
*   *** *   *  *   *  **  * second_number;
**  **** *  *** **  * swap;

*    *  ** ** **  ****** ** *  ****      *** **     ** ****    * *  * 


* ***** *   ********  *  * * **** ** *  
** **      * ** **       *   *** * ********      *
**  ** **  **  *  ***     * ** **** *   

* ** ****  *  ** *   ** *  ***** **  * ** **** * ** ***  * );
****    * *     * ***  * **        * *      **  * ** **
* *  *** **    *  *** *       *  0;

}

Comments

Case 0: Correct output
Case 1: Correct output
Case 2: Correct output

Answer 3

Hidden content!
#include<stdio.h>
int main(){
  **    ** *   *  * ** ** ** a,b,temp;
 **** *   ** * *   *    * *   ** ***       * ****    * *
   ***   ****   **     * ******* **   *
** *  **   ***   **** **     * *   **   ******* * **   ** * 
return 0;}

Comments

Case 0: Wrong output
Case 1: Wrong output
Case 2: Wrong output

---

Case 0: Correct output
Case 1: Correct output
Case 2: Correct output

Answer 4

Hidden content!
#include<stdio.h>
int main()
{
int a,b;
  *   *      * * **  ****   *          ** * **  * *  **  *  
  **  *  ***      **  *         ** *   *****    *   ** 
* *  ****   * *   * **   *  ** 
* ** *      ** ** *      ***  *  *
*    *** ***        **** **  *
**** * *** ***  *   *  * ** * **** *** * ** *** ** ***
return 0;
}

Comments

Case 0: Correct output
Case 1: Correct output
Case 2: Correct output

Answer 5

Hidden content!
        ***  * * * ***
**  **  (){
    **  ***
  * ** **** ****    *  of x and y:   * *  ** 
* ** *     ***  *** * * * *    ** * *
*  * ****** *  *  of x= %d and the *   of y *    **  *  *
*****  *
 * *
*  *
   *  **  *** **  * x * y *    **  * *    ** *  * *


 *    0;
}

Comments

Case 0: Wrong output
Case 1: Wrong output
Case 2: Wrong output

Answer 6

Hidden content!
 * * ** *** * ** * *
int *  ***
{
**** *  * *******  a,b,swap;
    **     *  ****     * 
**    * * *   *      *** 
swap=a;
a=b;
b=swap;
******  **** * *     * * *   a);
 * *** *** *  **   *
  **     *****  * 0 ;
}

Comments

Case 0: Correct output
Case 1: Correct output
Case 2: Correct output

Answer 7

Hidden content!
** * **      *  ***  
main()
{
   * * ****   *  ***    *
 **** *   **** ** *  ** * *
*** * **    *****  *  *  * * *
swap=a;
a=b;
b=swap;
*  *** * *  * *  * **  *** a);
 ****   *  * * *** 
*  ** *  *    ** 0 ;
}

Comments

prog.c:2:1: warning: return type defaults to 'int' [-Wimplicit-int]
 main()
 ^~~~

Answer 8

Hidden content!
 **** **    ******** 
 int main(){
int a,b;

*    ***      *    *  * * * ****  ***  *   * *   * ***  ********* **  **** 

 **   *** * ***** **  **  *  *  **                * **  *** 

return 0;
}

Comments

Case 0: Correct output
Case 1: Correct output
Case 2: Correct output

Answer 9

Hidden content!
*     *  *** *   ** 
  **   *****  main(){
int a,b;

****  ***    **  * * ** *****  *  * ** * * **  ** * *  *   **  * *     ** 

    *     * ****** ** ****  ***   *    **** *   ** * *

return 0;
}

Comments

Case 0: Wrong output
Case 1: Wrong output
Case 2: Wrong output

Answer 10

Hidden content!
#include <stdio.h>

int main(){
   ********  ** *
 *  * ** *** * **  * *  * *  x,y,temp;
****  *  *  * ** **** *    
       * *  * ** *** *    ****   *  ** **  **  *    
******* *  **** ** *  * *   * *    ******* ******* **   * *
    
*   ***  * *** ** ** **  = x;
 *  ****   *  **  **  ***** = y;
*  ****  * *    **  ****    = temp;
   * *  ** * *****  *  *   
**  * *  ** ** *   * ** **  *    * *  **   *    x,y);
**       ***  * *   *** * ** 
*    **     * * *   ** *    ** 0;
}

Comments

Case 0: Correct output
Case 1: Correct output
Case 2: Correct output